Voice Over Internet Protocol is a name of a family of technologies that allows transmission of voice over an established network connection. What is usually discussed, though, is Internet Telephony - bidirectional voice (and lately video) transmission over public networks.

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How to install H.239? From the H323plus or openh323gk or where?

I have downloaded this, but i dont see in the ./configure output anything related to h.239. Any idea? downloaded ex: http://waix.dl.sourceforge.net/project/openh323gk/Sources/2.3.3/ config.status: ...
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Skype call recording with real-time annotation / markers?

There are plenty of applications to record Skype calls, but I am looking for one that allows you to place "chapter markers" or any sort of bookmarks or annotations at certain points in the call in ...
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2k views

Windows 7: How do I listen to music on the computer's speakers, and take calls over a headset, without having to unplug/plugin the headset?

I like hearing most audio over my computer's speakers. I like taking calls using a wired headset. I have a random HP desktop PC that came pre-installed with Windows 7, 64. It has Realtek Audio and ...
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237 views

Windows utility to monitor VoIP?

I no longer have a landline and rely on a VoIP provider to call/receive calls through the PSTN. It generally works well, but sometimes, end-users complain of low call quality, even when my ADSL line ...
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How to make calls from a remote computer through my land-line phone?

I have a great land-line phone plan; I barely use all of the minutes. Is possible to add a modem/server system so that I can make calls through this line via the internet when I am away? What kind ...
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VoIP (on a landline) vs SIP (on mobile)? What do I miss not using VoIP

A bit of a background. Thinking of moving away from a softphone, which I predominantly use for a long distance calls, a few months ago I got myself a Linksys SPA3000, got it configured (was not easy, ...
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program to dial land phone, enter password and record?

is there a program for Windows (or linux command line) platform that would do below from a command line? call a land phone number (using my SIP account) enter password record the call finishes after ...
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How to set up personal VoIP server?

I'm looking to run my own VoIP server so I can make and record calls and the like. I need to basically bind a phone number to the server and me able to call it and use it as a regular phone. I'm new ...
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589 views

Connect a PC to PSTN network

I have a land-line phone through my ISP. I use it to call land-line phones free of charge like phones in Europe etc. what I want to do is that I want to use this service from any PC so I can call any ...
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35 views

How to split registration and media?

I have a SIP project. Where i will have SIP server running. Server will do following: will only do routing and receive incoming calls But the audio/video will be peer 2 peer Can this be done with ...
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Voice activated and silence deactivated audio recording software

I plugged my PBX into the microphone hole in my PC's sound card, in order to record all activity on my PBX in MP3 format. I am using the software called "Recordpad", by NCH. The problem is the ...
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513 views

free voice activated sound recording software

I connected my PBX to the sound card of my Windows XP PC, using a special interface hardware. I want to record all the sound into MP3 format. Please reccomend a free software that can record only ...
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TeamSpeak 3 Disconnects

I've recently had a few random TS3 mass disconnects and I'm am curious to know where I may find any applications that can help me determine the cause of any types of TS3 server disconnections as we ...
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3answers
145 views

Go for VoIP or Skype? [closed]

I'm looking to implement a communication system which will cut down our company's costs. I was suggested to go with VoIP or simply Skype. Can anyone suggest why one would be better than the other? We ...
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8k views

Softphone for 64-bit Windows 7 to make SIP calls without registering with a SIP proxy?

We have test tools that require us to call SIP addresses like localhost:5061. I used to use SJPhone on Windows XP, and an older version of X-lite, which both worked fine, and didn't require the SIP ...
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2k views

How do I see how much bandwidth my VoIP phone takes?

I have a VoIP Phone with Vonage where highspeed internet service with rogers. More recently my internet bandwith usage has gone up even though I am not suring internet that much (2.5 - 3 GB per day). ...
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241 views

Call someone on the same network using VOIP calls

Is there a VOIP software where I can call a friend on the same local network? I should be able to add friends via their local IP addresses and provided they have the same software installed, be able ...
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7k views

DrayTek 2820 configuration using public IP addresses

I have a /29 range of public IP addresses assigned to me by my ISP. I'm trying to configure a SIP VOIP handset to register with my VOIP provider who recommend using public IP addresses rather than ...
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695 views

How to Change SIP default port 5060

Port 5060 is blocked in our network, and I was wondering if it was possible to change it to 5222, which is a port used by Google Talk. If it is possible and I do change it, will I still be able to use ...
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microsoft lync linux client [closed]

we are currently evaluating Microsoft Lync server (previously Microsoft Office Communications Server). It talks sip over TLS (TCP 5061) with SIMPLEmessaging, what linux client would you suggest to ...
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506 views

T1 and DSL, same switch, DHCP + VOIP… is this possible?

Need a little advice/help here. We're trying to use two separate Internet connections, through a single switch, with static IP for the T1 and DHCP (using a router) for the DSL. But we are also trying ...
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Is the area code of this phone number 17, 170 or 1702? [closed]

This isn't really an application question, but StackExchange doesn't really have a VoIP/Phone forum from what I can see. Anyways, I have an Asterisk server setup at our office and its just on a ...
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624 views

Can you run DSL and T1 through a single switch for two different purposes?

I'm not quite sure this works, but my co-worker says it will. Details first: We have a small office of less than 10 PCs, and we use VOIP for our business phone line. All PCs require internet access. ...
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443 views

Is there an adapter to use a regular phone with Skype or Google Voice?

Is there an adapter to use a regular phone with Skype or Google Voice? I found this Dlink adapter but it is discontinued, any idea why? Will it still work in Canada and in the US? Any suggestions for ...
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Can you recommend a free lo-fi VoIP service?

Sometimes I need to talk to someone (using PCs on both sides, no landlines) having a very low bandwidth (56K and less). Can you recommend a VoIP service which could provide a connection stable enough ...
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28 views

Had seen an ad for a thumb drive like ATA device that has a RJ11 on the output and RJ45 on the input - what was it?

I seem to recall an ad for a thumb drive like ATA device that had a RJ11 jack that you could plug your DSL line to ( or maybe it was an Ethernet port) and on the other side you could hook up a ...
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309 views

My Ip phone can't login to my voip account with my new thomson router!

I have Thomson TG587N Wireless-N ADSL2+ Router from o2 and I have a Siemens Gigaset C475 IP Phone connected to one of their Ethernet ports. I have an account in voipcheap.com and I used to login in ...
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249 views

VOIP/Skype/GoogleVoice solution without a PC

In short, I'm looking to drop current VOIP provider (Cablevision/Optimum Voice) and go with cheaper standalone package BUT want to keep existing standard phone that plugs into their box. Does anyone ...
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SIP client to open a web page with caller ID

Does anyone know of a SIP client that can open a web page to a configurable URL when someone calls? We have a web-based database, and I'd like to search by phone number whenever we get an incoming ...
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242 views

Stop playback of my voice when using mic during a call with twinkle voip

Hi When I'm making voip calls with twinkle I can hear myself via the speakers. It's not like an echo you might get in empty room for example. While this is useful if you're trying to check if your mic ...
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How do I setup a sip account with pennytel in empathy or ekiga in ubuntu 10.04?

I am trying to get my PennyTel VOIP account working in ubuntu 10.04. I know ubuntu use to use ekiga for sip calls. I also know that ubuntu now uses empathy for sip calls. However I can't get either ...
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51 views

telephone sockets connecting them to an ATA

We have many extension sockets in the house therefore be fairly expensive to buy an ata for each phone. Since extension sockets are daisy chained together, could I just plug it into the FXS socket ...
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Do VoIP packets travel through the internet link in LAN calls?

or do they leave the LAN if they don't really need to? If both parties in a call are in the same LAN, does the SIP/Skype call voice packets travel in and out through the internet? If so, how do I to ...
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388 views

Soft sound problem on Sony Viao NetBook in GTalk and GMail Chat

I have a new Sony Viao netbook and have a problem with the sound - or lack of loudness thereof. When using GTalk or chat in GMail with earphones all is OK but when using the netbooks' built in ...
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213 views

Which Messenger service allows you to make voice calls with the least amount of bandwidth?

I'll be going to a country side for a few days and the speeds there are pathetic! Which voice messenger uses the least amount of bandwidth in order to make voice calls to other pc's. Speeds are a ...
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Is there a way to Call with skype in my LAN without internet connection?

Is there a way to Call with skype in my LAN without internet connection ? If yes, tell me how please ;)
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74 views

Hardware and Service for Voip

What king of hardware/service do I need to create a voip system in my LAN ( only PC-to-PC call and without internet connection !! ) ? 1) Internet Connection 2) Voip phones ... . Help me to compile ...
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4answers
4k views

Open source chat protocol that handles voice & video?

I'm looking for a chat protocol which: Has easy to use clients which will run on both Windows and Linux. Has a server which I can run myself on Linux (preferably easy to set up). Supports duplexed ...
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What are the best VoIP providers? [duplicate]

Possible Duplicate: Recommendations for cheap and reliable VoIP service? For the general customer, who are the best VoIP providers? I would like to know who provides the most robust ...
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1answer
912 views

Garbled VoIP over VPN, mainly on conference bridges

My office has a large Cisco UCM setup, and I work primarily remotely with a physical Cisco 7940 phone. I've battled some quality issues before, which turned out to be a bad switch port. But mostly ...
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4answers
682 views

Please recommend SIP voicemail software [closed]

My ISP offers some VoIP service which is provided via the same network cable as internet does. The ISP techsupport claims that the only known ways of connection allowing me to use VoIP is such that ...
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What is the best way to import and/or sync Gmail-Google contacts with Skype contacts?

What is the best way to import and/or sync Gmail-Google contacts with Skype contacts? Is this even possible?
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494 views

A good softphone for OS X

I'm sorting out a VOIP setup for the office that I work in (there's about 50 people, mostly macs), and I'm looking for a good SIP softphone that would work with an Asterisk based PBX, and I figured ...
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getting pbxes, sip2sip, ipkall all working

I was able to make a call from my landline to my ipkall number and have it ring on my android device running sipdroid. Just once. Since then, when I call my ipkall number, I get "The person at ...
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VOIP - how to see which number is called

I want to use VOIP telephone, but want to have a few telephone numbers which will be answered by one person. Problem is I want to see to which number caller is calling. For example: I have a numbers ...
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107 views

Can somebody recommend a simple usb soundcard/key - something that can drive a mono headset…?

I'm looking for a decent, and well supported (probably from a big peripherals brand) USB soundcard to drive a headset. The headset will be used with X-Lite (for VOIP). The headset has a two standard ...
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VoIP calls through webcafés when travelling?

While reading this article from the NYT that shows how to make cheap calls from overseas with a cellphone, I was thinking of an alternative: Do you know of a compact IP phone that comes with two ...
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2k views

Using Asterisk (SIP) with multiple phone lines?

I'm trying to create a VOIP system that will allow me to run multiple conference calls at the one time. For instance, A is talking to B and C And at the same time D is talking to E and F So I'm ...
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2answers
550 views

What N+ modem routers with VOIP exist?

i'm looking to purchase an N+ wireless router with built in voip capabilities. why n+, because i have some bad interference with my crappy (old) 802.11b Netgear Wtg624 router + nb1300 modem (yes, ...
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Linux Skype issue. How to work with Pulseaudio in Ubuntu Karmic and/or Hardy?

I'm trying to use Skype with Ubuntu Karmic and I just don't understand how to configure Pulseaudio properly. The previous version of Skype allowed me to talk through and hear the voice on my USB ...